Cited by 107Liver Disease Diagnosis and TreatmentIron Metabolism and DisordersLiver physiology and pathology

The DOI matches its Crossref record; 40 of the 40 references it cites were found in a registry or an index.

Iron Overload Is Associated with Hepatic Oxidative Damage to DNA in Nonalcoholic Steatohepatitis

Abstract

Several lines of evidence have suggested that oxidative stress plays an important role for the pathogenesis of nonalcoholic steatohepatitis (NASH). Therefore, by using immunohistochemical staining of liver biopsy samples, we measured hepatic 7,8-dihydro-8-oxo-2′ deoxyguanosine (8-oxodG), a DNA base-modified product generated by hydroxyl radicals, of 38 NASH patients and compared with 24 simple steatosis and 10 healthy subjects. Relation of hepatic 8-oxodG with clinical, biochemical, and histologic variables and changes after iron reduction therapy (phlebotomy plus iron–restricted diet) were also examined. Hepatic 8-oxodG levels were significantly higher in NASH compared with simple steatosis (17.5 versus 2.0 8-oxodG–positive cells/105 μm2; P < 0.0001). 8-oxodG was significantly related to iron overload condition, glucose-insulin metabolic abnormality, and severities of hepatic steatosis in NASH patients. Logistic regression analysis also showed that hepatic iron deposit and insulin resistance were independent variables associated with elevated hepatic 8-oxodG. After the iron reduction therapy, hepatic 8-oxodG levels were significantly decreased (from 20.7 to 13.8 positive cells/105 μm2; P < 0.01) with concomitant reductions of serum transaminase levels in NASH patients. In conclusion, iron overload may play an important role in the pathogenesis of NASH by generating oxidative DNA damage and iron reduction therapy may reduce hepatocellular carcinoma incidence in patients with NASH. (Cancer Epidemiol Biomarkers Prev 2009;18(2):424–32)

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Crossref · 10.1158/1055-9965.epi-08-0725

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  1. Japanese Society for the Study of Obesity. New criteria of obesity [in Japanese]. J Jpn Soc Obes 2000;6:18–28.

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Metadata

Authors
Fujita, N., Miyachi, H., Tanaka, H., Takeo, M., Nakagawa, N., Kobayashi, Y., Iwasa, M., Watanabe, S., & Takei, Y.
Affiliations
Mie University (JP)
Venue
Cancer Epidemiology, Biomarkers & Prevention
Published
2009-02-01
Volume
18
Issue
2
Pages
424-432
ISSN
  • 1055-9965 (ISSN-L)
  • 1538-7755
OpenAlex
W2164144565
Cited by
107
References
40
Citations by year
2026: 4 · 2025: 1 · 2024: 5 · 2023: 3 · 2022: 5 · 2021: 2 · 2020: 5 · 2019: 8 · 2018: 8 · 2017: 5 · 2016: 10 · 2015: 9 · 2014: 7 · 2013: 7 · 2012: 6
FWCI
6.30
Type
journal article
Language
en
Open access
closed
Locations
  • Cancer Epidemiology Biomarkers & Prevention (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Hepatology › Liver Disease Diagnosis and Treatment
  • Health Sciences › Medicine › Hematology › Iron Metabolism and Disorders
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
Keywords
nonalcoholic steatohepatitis, iron overload, oxidative DNA damage, 8-hydroxy-2'-deoxyguanosine, oxidative stress, phlebotomy, insulin resistance, hepatic steatosis, hepatocellular carcinoma risk, hydroxyl radicals
MeSH terms
8-Hydroxy-2'-Deoxyguanosine, Adult, Aged, Analysis of Variance, Deoxyguanosine, DNA Damage, Fatty Liver, Female, Carcinoma, Hepatocellular, Humans, Insulin Resistance, Liver Function Tests, Liver Neoplasms, Male, Middle Aged, Severity of Illness Index, Logistic Models, Case-Control Studies, Oxidative Stress, Statistics, Nonparametric, Iron Overload

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